Review on 🚴 TAC 9 Bike Tubes, 700x35-40 (27x1-3/8) Schrader Valve, 32mm (ISO 622/630) by Shawn Vennakota

I followed the instructions exactly when changing my bicycle inner tube and also a good friend of mine who is a cyclist guided me through the process. Last night I put on a whistle and today I rode my bike twice. The second time I wanted to leave my destination, I found that my tube was empty again. There was a hole right at the base of the valve stem, and a big one at that. When I inflated the tire I had a pressure gauge so I didn't over inflate and still the huge hole is there. This tube was disappointing to say the least. That being said I contacted support and they said they would send me a replacement which makes me feel a little better. I hope they perform better than the previous pair.